im try to post my eqaution but i want to no how to use the math tags

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- Jun 9th 2010, 07:10 AMmath321imaginary number multiplication
im try to post my eqaution but i want to no how to use the math tags

- Jun 9th 2010, 07:11 AMAckbeet
Go here for LaTeX help.

- Jun 9th 2010, 07:41 AMmath321
$\displaystyle

(\frac{1}{2} + \frac{\sqrt{2}}{2} i)^2

$ - Jun 9th 2010, 07:43 AMAckbeet
So the rules are the same as for regular multiplication. Foil it out. All you have to remember is that $\displaystyle i^{2}=-1$.